111 lines
3.2 KiB
Python
Executable File
111 lines
3.2 KiB
Python
Executable File
#!/usr/bin/env python3
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"""
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flacinfo
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A script analoguous to `mp3info`, allowing one to easily tag their music
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collection, but for flac files.
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"""
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import argparse
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import subprocess
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import os
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import sys
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VORBIS_ARG_NAME = {
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'artist': 'ARTIST',
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'comment': 'COMMENT',
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'genre': 'GENRE',
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'album': 'ALBUM',
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'albumnumber': 'DISCNUMBER',
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'track': 'TRACKNUMBER',
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'title': 'TITLE',
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'year': 'DATE',
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}
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def argparser():
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""" Parses the arguments from sys.argv """
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parser = argparse.ArgumentParser(
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description="Edit flac files' metadata")
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parser.add_argument('-a', '--artist',
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help="Specify artist name")
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parser.add_argument('-c', '--comment',
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help="Specify an arbitrary comment")
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parser.add_argument('-g', '--genre',
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help="Specify genre (in plain text)")
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parser.add_argument('-l', '--album',
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help="Specify album name")
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parser.add_argument('-m', '--albumnumber',
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help="Specify album number")
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parser.add_argument('-n', '--track',
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help="Specify track number")
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parser.add_argument('-t', '--title',
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help="Specify track title")
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parser.add_argument('-y', '--year',
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help="Specify album year")
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parser.add_argument('file', nargs='+', metavar='FILE',
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help="The file(s) to work on")
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return parser.parse_args()
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def isFlacFile(path):
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""" Checks whether `path` refers to an existing, writeable flac file """
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if not os.path.isfile(path) or not os.access(path, os.W_OK):
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return False
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flacRun = subprocess.run(['metaflac', '--list', path],
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stdout=subprocess.DEVNULL,
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stderr=subprocess.DEVNULL)
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if flacRun.returncode != 0:
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return False # Metaflac failed to list the files' metadata
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return True
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def makeMetaflacArgs(inArgs):
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outArgs = []
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for arg in inArgs:
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argVal = inArgs[arg]
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if arg not in VORBIS_ARG_NAME or argVal is None:
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continue
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argName = VORBIS_ARG_NAME[arg]
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outArgs.append('--remove-tag={}'.format(argName))
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outArgs.append("--set-tag={}={}".format(argName, argVal))
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return outArgs
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def main():
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args = argparser()
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hasErrors = False
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for cFile in args.file:
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if not isFlacFile(cFile):
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print(("Error: file {} does not exist, or is not writeable by "
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"metaflac").format(cFile),
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file=sys.stderr)
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hasErrors = True
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if hasErrors:
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print("One or more file cannot be manipulated. Aborting.",
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file=sys.stderr)
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sys.exit(1)
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metaflacArgs = makeMetaflacArgs(vars(args))
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metaflacArgs += args.file
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metaflacArgs.insert(0, 'metaflac')
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metaflacRun = subprocess.run(metaflacArgs)
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if metaflacRun.returncode != 0:
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print(('\n\nMetaflac exited with return code {}. There was an error '
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'during the execution, you should look at the output to '
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'investigate it.').format(metaflacRun.returncode),
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file=sys.stderr)
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sys.exit(metaflacRun.returncode)
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if __name__ == '__main__':
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main()
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